Detail publikačního výsledku

Influence of Sampling Rate on Handwriting in Children with Developmental Dysgraphia

MUCHA, J.; MEKYSKA, J.; ZVONČÁKOVÁ, K.; KLOCEK, A.

Originální název

Influence of Sampling Rate on Handwriting in Children with Developmental Dysgraphia

Anglický název

Influence of Sampling Rate on Handwriting in Children with Developmental Dysgraphia

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Digital handwriting analysis provides objective, quantitative measures of fine motor skills with growing application in the assessment of neurodevelopmental disorders. However, standardized data acquisition protocols remain underdeveloped. This study investigates the impact of sampling frequency on kinematic features of handwriting in children with Developmental Dysgraphia (DD; n = 155) and Intact Controls (IC; n = 114). Participants completed three graphomotor tasks and a paragraph copy task on a Wacom Cintiq 16 tablet. Original signals (fs = 187 Hz) were systematically downsampled from 170 Hz to 10 Hz. Ninety-four kinematic, dynamic, spatial, and temporal features were extracted. Mixed-design ANOVAs (sampling frequency × diagnosis) were performed on the Normalized Root Mean Squared Error (NRMSE) between original and downsampled signals for each feature. Significant interactions between sampling frequency and diagnosis were observed for several kinematic features: overall and horizontal on-surface velocity and overall and vertical in-air velocity. These findings indicate that downsampling disproportionately affected the DD group.

Anglický abstrakt

Digital handwriting analysis provides objective, quantitative measures of fine motor skills with growing application in the assessment of neurodevelopmental disorders. However, standardized data acquisition protocols remain underdeveloped. This study investigates the impact of sampling frequency on kinematic features of handwriting in children with Developmental Dysgraphia (DD; n = 155) and Intact Controls (IC; n = 114). Participants completed three graphomotor tasks and a paragraph copy task on a Wacom Cintiq 16 tablet. Original signals (fs = 187 Hz) were systematically downsampled from 170 Hz to 10 Hz. Ninety-four kinematic, dynamic, spatial, and temporal features were extracted. Mixed-design ANOVAs (sampling frequency × diagnosis) were performed on the Normalized Root Mean Squared Error (NRMSE) between original and downsampled signals for each feature. Significant interactions between sampling frequency and diagnosis were observed for several kinematic features: overall and horizontal on-surface velocity and overall and vertical in-air velocity. These findings indicate that downsampling disproportionately affected the DD group.

Klíčová slova

developmental dysgraphia, graphomotor disabilities, sampling rate, sampling frequency, online handwriting, down-sampling

Klíčová slova v angličtině

developmental dysgraphia, graphomotor disabilities, sampling rate, sampling frequency, online handwriting, down-sampling

Autoři

MUCHA, J.; MEKYSKA, J.; ZVONČÁKOVÁ, K.; KLOCEK, A.

Rok RIV

2026

Vydáno

05.06.2025

Nakladatel

Les Presses de l'Université de Montréal / Presses Internationales Polytechnique

Místo

Montréal, Canada

ISBN

978-2-7606-5509-6

Kniha

Proceedings IGS 2025: Investigating Human Movements - Handwriting and Beyond

Strany od

153

Strany do

156

Strany počet

4

URL

https://pum.umontreal.ca/catalogue/proceedings_igs_2025

BibTex

@inproceedings{BUT200860,
  author="Ján {Mucha} and Jiří {Mekyska} and Katarína {Šafárová} and  {}",
  title="Influence of Sampling Rate on Handwriting in Children with Developmental Dysgraphia",
  booktitle="Proceedings IGS 2025: Investigating Human Movements - Handwriting and Beyond",
  year="2025",
  pages="153--156",
  publisher="Les Presses de l'Université de Montréal / Presses Internationales Polytechnique",
  address="Montréal, Canada",
  isbn="978-2-7606-5509-6",
  url="https://pum.umontreal.ca/catalogue/proceedings_igs_2025"
}